Submission #101291

#	Time	Username	Problem	Language	Result	Execution time	Memory
101291		chunghan	Detecting Molecules (IOI16_molecules)	C++17	0 / 100	3 ms	512 KiB

molecules

#include<bits/stdc++.h>
#include"molecules.h"

using namespace std;

typedef long long int lld;
typedef pair<int, int> pii;

vector<int> find_subset(int l, int u, vector<int> w) {
    vector<pii> p;
    vector<int> rst;
    vector<lld> S;
    int a = 0, b = 0, sum = 0;
    for (int i = 0; i < (int)w.size(); i++)
        p.push_back(pii(w[i], i));
    sort(p.begin(), p.end());
    S.push_back(p[0].first);
    for (int i = 1; i < (int)p.size(); i++)
        S.push_back(S[i-1] + p[i].first);
    while (1) {
        if (sum > u) sum -= S[a++];
        else if (sum < l) sum += S[b++];
        else if ((sum >= l && sum <= u) || (b == w.size())) break;
    }
    for (int i = a; i <= b; i++)
        rst.push_back(p[i].second);
    return rst;
}

Compilation message (stderr)

molecules.cpp: In function 'std::vector<int> find_subset(int, int, std::vector<int>)':
molecules.cpp:23:47: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
         else if ((sum >= l && sum <= u) || (b == w.size())) break;
                                             ~~^~~~~~~~~~~

• Subtask 1: 0 / 9
• Subtask 2: 0 / 10
• Subtask 3: 0 / 12
• Subtask 4: 0 / 15
• Subtask 5: 0 / 23
• Subtask 6: 0 / 31